S4: Point Counting Data for Middle Triassic Helsby Sandstone Formation

161.0 KB of supplementary data on point counting methods for the Helsby Sandstone Formation. The dataset, authored by Xiang Yan, is available in XLSX format under a CC-BY-4.0 license and was last updated on June 2, 2026. It supports a source-to-sink synthesis of a Middle Triassic river system in the British Isles.

Use Cases

• Calibrating sediment composition analysis based on the described point counting methods.
• Training models for automated mineralogical classification of sandstone thin sections.
• Validating geological interpretations of the Sherwood Sandstone Group's depositional environment.
• Supporting provenance studies for the Helsby Sandstone Formation river system.

Strengths

• Data is openly licensed under CC-BY-4.0.
• File size is 161.0 KB, making it quick to download and inspect.
• Last update timestamp is precisely recorded as 2026-06-02 12:54:55.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• The 161.0 KB size indicates a very limited data scope.

Provenance

Source

figshare, authored by Xiang Yan.

Collection Method

Likely contains methodological data supporting point counting analysis for geological research.

Freshness

Last updated 2026-06-02 12:54:55; freshness should be verified.

Geography

British Isles, specifically the Helsby Sandstone Formation.